Thematic Bible: Spirit of, explained

Is not, this, the fast that I must ever choose - To unbind the tight cords of lawlessness, To unloose the bands of the yoke, - and To let the crushed go free, and That every yoke, ye tear off? Is it not to break unto the hungry, thy bread, And the thrust-out oppressed, that thou bring into a home, - When thou seest one naked, that thou cover him, And from thine own flesh, shalt not hide thyself?